The core activity of B&S Fibre optique Sàrl consists of planning, building, maintaining and operating telecommunications infrastructures, particularly fibre optic networks. This includes: planning and designing fibre optic networks, building fibre optic networks, including laying fibre optic cables, maintaining and operating fibre optic networks, implementing projects for the deployment of fibre optic networks (FTTH or FTTx), installing internal and external fibre optic connections, implementing local and wide area networks (LAN and WAN), using fibre optic technology for infrastructure deployment, and using OPWG technology (Optical Point-to-Point Connections) for fibre optic network deployment.